Thule 884 Roll Model Kayak Roof Rack Mount Carrier Kayak roof rack mount carrier for use with thule square load bars (sold separately) With an integrated roller that prevents keel contact with the load bar Low friction, felt-lined thule hydro-glide rear saddles and thule's set-to-go front saddles provide maximum suppor Limited lifetime warranty Centers and guides the kayak for easier loading and unloading And includes two load straps with padded buckles and two ratcheting bow/stern ropes Keeping effort to a minimum and protecting the hull from damage Kayak roof rack mount carrier for use with thule square load bars (sold separately) Low friction, felt-lined thule hydro-glide rear saddles and thule's set-to-go front saddles provide maximum suppor Limited lifetime warranty Centers and guides the kayak for easier loading and unloading